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<div class="title">fluid_dynamics_multi_phase.hpp</div>  </div>
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<a href="fluid__dynamics__multi__phase_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;</div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="preprocessor">#pragma once</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;</div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="fluid__dynamics__multi__phase_8h.html">fluid_dynamics_multi_phase.h</a>&quot;</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;</div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">//=================================================================================================//</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespace_s_p_h.html">SPH</a></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;{</div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment">//=================================================================================================//</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;    <span class="keyword">namespace </span>fluid_dynamics</div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;    {</div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;        <span class="comment">//=================================================================================================//</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;        <span class="keyword">template</span>&lt;<span class="keyword">class</span> RelaxationInnerType&gt;</div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;        RelaxationMultiPhase&lt;RelaxationInnerType&gt;::</div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;            RelaxationMultiPhase(BaseBodyRelationInner &amp;inner_relation,</div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;                BaseBodyRelationContact &amp;contact_relation) :</div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;                <a class="code" href="class_s_p_h_1_1fluid__dynamics_1_1_relaxation_inner_type.html">RelaxationInnerType</a>(inner_relation), MultiPhaseContactData(contact_relation)</div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;        {</div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;            <span class="keywordflow">if</span> (inner_relation.sph_body_ != contact_relation.sph_body_)</div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;            {</div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;                std::cout &lt;&lt; <span class="stringliteral">&quot;\n Error: the two body_realtions do not have the same source body!&quot;</span> &lt;&lt; std::endl;</div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;                std::cout &lt;&lt; __FILE__ &lt;&lt; <span class="charliteral">&#39;:&#39;</span> &lt;&lt; __LINE__ &lt;&lt; std::endl;</div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;                exit(1);</div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;            }</div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;</div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;            <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> k = 0; k != contact_particles_.size(); ++k)</div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;            {</div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;                contact_Vol_.push_back(&amp;(contact_particles_[k]-&gt;Vol_));</div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;                contact_p_.push_back(&amp;(contact_particles_[k]-&gt;p_));</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;                contact_rho_n_.push_back(&amp;(contact_particles_[k]-&gt;rho_));</div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;                contact_vel_n_.push_back(&amp;(contact_particles_[k]-&gt;vel_));</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;            }</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;        }</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;        <span class="comment">//=================================================================================================//</span></div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;        <span class="keyword">template</span>&lt;<span class="keyword">class</span> PressureRelaxationInnerType&gt;</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;        BasePressureRelaxationMultiPhase&lt;PressureRelaxationInnerType&gt;::</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;            BasePressureRelaxationMultiPhase(BaseBodyRelationInner &amp;inner_relation,</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;                BaseBodyRelationContact &amp;contact_relation) :</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;                RelaxationMultiPhase&lt;PressureRelaxationInnerType&gt;(inner_relation,</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;                    contact_relation)</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;        {</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;            <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> k = 0; k != this-&gt;contact_particles_.size(); ++k)</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;            {</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;                riemann_solvers_.push_back(CurrentRiemannSolver(*this-&gt;material_, *this-&gt;contact_material_[k]));</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;            }</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;        }</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;        <span class="comment">//=================================================================================================//</span></div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;        <span class="keyword">template</span>&lt;<span class="keyword">class</span> PressureRelaxationInnerType&gt;</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;        BasePressureRelaxationMultiPhase&lt;PressureRelaxationInnerType&gt;::</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;            BasePressureRelaxationMultiPhase(ComplexBodyRelation &amp;complex_relation) :</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;                BasePressureRelaxationMultiPhase(complex_relation.inner_relation_, complex_relation.contact_relation_) {}</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;        <span class="comment">//=================================================================================================//</span></div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;        <span class="keyword">template</span>&lt;<span class="keyword">class</span> PressureRelaxationInnerType&gt;</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;        <span class="keywordtype">void</span> BasePressureRelaxationMultiPhase&lt;PressureRelaxationInnerType&gt;::Interaction(<span class="keywordtype">size_t</span> index_i, Real dt)</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;        {</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;            PressureRelaxationInnerType::Interaction(index_i, dt);</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;            FluidState state_i(this-&gt;rho_[index_i], this-&gt;vel_[index_i], this-&gt;p_[index_i]);</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;            <a class="code" href="class_vecd.html">Vecd</a> acceleration(0.0);</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;            <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> k = 0; k &lt; this-&gt;contact_configuration_.size(); ++k)</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;            {</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;                <a class="code" href="class_std_large_vec_3_01_real_01_4.html">StdLargeVec&lt;Real&gt;</a>&amp; Vol_k = *(this-&gt;contact_Vol_[k]);</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;                <a class="code" href="class_std_large_vec_3_01_real_01_4.html">StdLargeVec&lt;Real&gt;</a>&amp; rho_k = *(this-&gt;contact_rho_n_[k]);</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;                <a class="code" href="class_std_large_vec_3_01_real_01_4.html">StdLargeVec&lt;Real&gt;</a>&amp; p_k = *(this-&gt;contact_p_[k]);</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;                <a class="code" href="class_std_large_vec_3_01_vecd_01_4.html">StdLargeVec&lt;Vecd&gt;</a>&amp; vel_k = *(this-&gt;contact_vel_n_[k]);</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;                CurrentRiemannSolver&amp; riemann_solver_k = riemann_solvers_[k];</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;                Neighborhood&amp; contact_neighborhood = (*this-&gt;contact_configuration_[k])[index_i];</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;                <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> n = 0; n != contact_neighborhood.current_size_; ++n)</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;                {</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;                    <span class="keywordtype">size_t</span> index_j = contact_neighborhood.j_[n];</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;                    <a class="code" href="class_vecd.html">Vecd</a>&amp; e_ij = contact_neighborhood.e_ij_[n];</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;                    Real dW_ij = contact_neighborhood.dW_ij_[n];</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;                    FluidState state_j(rho_k[index_j], vel_k[index_j], p_k[index_j]);</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;                    Real p_star = riemann_solver_k.getPStar(state_i, state_j, e_ij);</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;                    acceleration -= 2.0 * p_star * e_ij * Vol_k[index_j] * dW_ij / state_i.rho_;</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;                }</div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;            }</div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;            this-&gt;acc_[index_i] += acceleration;</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;        }</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;        <span class="comment">//=================================================================================================//</span></div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;        <span class="keyword">template</span>&lt;<span class="keyword">class</span> PressureRelaxationInnerType&gt;</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;        <a class="code" href="class_vecd.html">Vecd</a> BasePressureRelaxationMultiPhase&lt;PressureRelaxationInnerType&gt;::</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;            computeNonConservativeAcceleration(<span class="keywordtype">size_t</span> index_i)</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;        {</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;            <a class="code" href="class_vecd.html">Vecd</a> acceleration = PressureRelaxationInnerType::computeNonConservativeAcceleration(index_i);</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;            Real rho_i = this-&gt;rho_[index_i];</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;            Real p_i = this-&gt;p_[index_i];</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;            <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> k = 0; k &lt; this-&gt;contact_configuration_.size(); ++k)</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;            {</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;                <a class="code" href="class_std_large_vec_3_01_real_01_4.html">StdLargeVec&lt;Real&gt;</a>&amp; rho_k = *(this-&gt;contact_rho_n_[k]);</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;                <a class="code" href="class_std_large_vec_3_01_real_01_4.html">StdLargeVec&lt;Real&gt;</a>&amp; p_k = *(this-&gt;contact_p_[k]);</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;                Neighborhood&amp; contact_neighborhood = (*this-&gt;contact_configuration_[k])[index_i];</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;                <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> n = 0; n != contact_neighborhood.current_size_; ++n)</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;                {</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;                    <span class="keywordtype">size_t</span> index_j = contact_neighborhood.j_[n];</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;                    <a class="code" href="class_vecd.html">Vecd</a>&amp; e_ij = contact_neighborhood.e_ij_[n];</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;                    Real dW_ij = contact_neighborhood.dW_ij_[n];</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;                    Real rho_j = rho_k[index_j];</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;                    Real p_j = p_k[index_j];</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;                    Real p_star = (rho_i * p_j + rho_j * p_i) / (rho_i + rho_j);</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;                    acceleration += (p_i - p_star) * this-&gt;Vol_[index_j] * dW_ij * e_ij / rho_i;</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;                }</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;            }</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;            <span class="keywordflow">return</span> acceleration;</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;        }</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;        <span class="comment">//=================================================================================================//</span></div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;        <span class="keyword">template</span>&lt;<span class="keyword">class</span> DensityRelaxationInnerType&gt;</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;        BaseDensityRelaxationMultiPhase&lt;DensityRelaxationInnerType&gt;::</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;            BaseDensityRelaxationMultiPhase(BaseBodyRelationInner &amp;inner_relation,</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;                BaseBodyRelationContact &amp;contact_relation) :</div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;                RelaxationMultiPhase&lt;DensityRelaxationInnerType&gt;(inner_relation,</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;                    contact_relation)</div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;            {</div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;                <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> k = 0; k != this-&gt;contact_particles_.size(); ++k)</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;                {</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;                    riemann_solvers_.push_back(CurrentRiemannSolver(*this-&gt;material_, *this-&gt;contact_material_[k]));</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;                }</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;            }</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;        <span class="comment">//=================================================================================================//</span></div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;        <span class="keyword">template</span>&lt;<span class="keyword">class</span> DensityRelaxationInnerType&gt;</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;        BaseDensityRelaxationMultiPhase&lt;DensityRelaxationInnerType&gt;::</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;            BaseDensityRelaxationMultiPhase(ComplexBodyRelation &amp;complex_relation) :</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;                BaseDensityRelaxationMultiPhase(complex_relation.inner_relation_, complex_relation.contact_relation_) {}</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;        <span class="comment">//=================================================================================================//</span></div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;        <span class="keyword">template</span>&lt;<span class="keyword">class</span> DensityRelaxationInnerType&gt;</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;        <span class="keywordtype">void</span> BaseDensityRelaxationMultiPhase&lt;DensityRelaxationInnerType&gt;::Interaction(<span class="keywordtype">size_t</span> index_i, Real dt)</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;        {</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;            DensityRelaxationInnerType::Interaction(index_i, dt);</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;            FluidState state_i(this-&gt;rho_[index_i], this-&gt;vel_[index_i], this-&gt;p_[index_i]);</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;            Real density_change_rate = 0.0;</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;            <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> k = 0; k &lt; this-&gt;contact_configuration_.size(); ++k)</div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;            {</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;                <a class="code" href="class_std_large_vec_3_01_real_01_4.html">StdLargeVec&lt;Real&gt;</a>&amp; Vol_k = *(this-&gt;contact_Vol_[k]);</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;                <a class="code" href="class_std_large_vec_3_01_real_01_4.html">StdLargeVec&lt;Real&gt;</a>&amp; rho_k = *(this-&gt;contact_rho_n_[k]);</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;                <a class="code" href="class_std_large_vec_3_01_real_01_4.html">StdLargeVec&lt;Real&gt;</a>&amp; p_k = *(this-&gt;contact_p_[k]);</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;                <a class="code" href="class_std_large_vec_3_01_vecd_01_4.html">StdLargeVec&lt;Vecd&gt;</a>&amp; vel_k = *(this-&gt;contact_vel_n_[k]);</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;                CurrentRiemannSolver&amp; riemann_solver_k = riemann_solvers_[k];</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;                Neighborhood&amp; contact_neighborhood = (*this-&gt;contact_configuration_[k])[index_i];</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;                <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> n = 0; n != contact_neighborhood.current_size_; ++n)</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;                {</div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;                    <span class="keywordtype">size_t</span> index_j = contact_neighborhood.j_[n];</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;                    <a class="code" href="class_vecd.html">Vecd</a>&amp; e_ij = contact_neighborhood.e_ij_[n];</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;                    Real dW_ij = contact_neighborhood.dW_ij_[n];</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;                    FluidState state_j(rho_k[index_j], vel_k[index_j], p_k[index_j]);</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;                    <a class="code" href="class_vecd.html">Vecd</a> vel_star = riemann_solver_k.getVStar(state_i, state_j, e_ij);</div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;                    density_change_rate += 2.0 * state_i.rho_ * Vol_k[index_j] * dot(state_i.vel_ - vel_star, e_ij) * dW_ij;</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;                }</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;            }</div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;            this-&gt;drho_dt_[index_i] += density_change_rate;</div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;        }</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;       <span class="comment">//=================================================================================================//</span></div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;    }</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;<span class="comment">//=================================================================================================//</span></div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;}</div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;<span class="comment">//=================================================================================================//</span></div><div class="ttc" id="class_std_large_vec_3_01_real_01_4_html"><div class="ttname"><a href="class_std_large_vec_3_01_real_01_4.html">StdLargeVec&lt; Real &gt;</a></div></div>
<div class="ttc" id="class_s_p_h_1_1fluid__dynamics_1_1_relaxation_inner_type_html"><div class="ttname"><a href="class_s_p_h_1_1fluid__dynamics_1_1_relaxation_inner_type.html">RelaxationInnerType</a></div></div>
<div class="ttc" id="class_std_large_vec_3_01_vecd_01_4_html"><div class="ttname"><a href="class_std_large_vec_3_01_vecd_01_4.html">StdLargeVec&lt; Vecd &gt;</a></div></div>
<div class="ttc" id="fluid__dynamics__multi__phase_8h_html"><div class="ttname"><a href="fluid__dynamics__multi__phase_8h.html">fluid_dynamics_multi_phase.h</a></div><div class="ttdoc">Here, we define the algorithm classes for the dynamics involving multiple fluids.   ...</div></div>
<div class="ttc" id="class_vecd_html"><div class="ttname"><a href="class_vecd.html">Vecd</a></div></div>
<div class="ttc" id="namespace_s_p_h_html"><div class="ttname"><a href="namespace_s_p_h.html">SPH</a></div><div class="ttdef"><b>Definition:</b> solid_body_supplementary.cpp:9</div></div>
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